They'll see the effect, but they won't see the panty lines! This shaper panty is more than underwear: it's made of our signature soft flex fabric for super comfy compression. It comfortably, lightly smooths out your curves by compressing your mid-to-lower tummy. The sheer SmartLace® bottom hides cellulite and doesn't show under clothes. This shaper features an innovative thong design to give your butt a little lift.